Add 15/30 and 40/27
1st number: 15/30, 2nd number: 1 13/27
15/30 + 40/27 is 107/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
15/30 = 15 × 9/30 × 9 = 135/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
40/27 = 40 × 10/27 × 10 = 400/270 - Add the two like fractions:
135/270 + 400/270 = 135 + 400/270 = 535/270 - 535/270 simplified gives 107/54
- So, 15/30 + 40/27 = 107/54
In mixed form: 153/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 15/30+80/27 15/60+40/27 15/30+40/54 45/30+40/27 15/90+40/27 15/30+40/81 75/30+40/27